Quite amazing case, the Iberian Bell Bekers being R1b (2 cases from 4 samples near Barcelona), by some strange reason nobody is capable to give subclades for them. Interesting case as they were also the unique R1b BB without any steppe ancestry. Just too amazing...
Why is that amazing? Old clades of R1b (P297 and upstream) were very common among East European HG and also showed up occasionally in central and western Europe. Besides R1b-V88 came to Iberia in the Neolithic via North Africa and was confirmed in Neolithic Catalonia. Iberian Beaker R1b could fit in either category. There was no bronze nor any sign of Indo-Europeanised society in Iberia until 1800 to 1500 BCE at earliest, in some regions only. It's very unlikely that DNA contradicts archeology in this kind of situation.